The invention discloses a main structure configuration variable type satellite platform and relates to the field of satellite structure platforms. The main structure configuration variable type satellite platform comprises six triangular prism truss modules, panels, n solar wings, m anchor docking mechanisms and k gas-liquid supplement docking mechanisms; one corner angles of the triangular prism truss modules point to the center and are in compact and centered alignment to form a hexagonal shape; the panels are fixedly installed on outside surfaces where the triangular prism truss modules point to; the solar wings are installed on outside surfaces of the panels; the anchor docking mechanisms are installed on the outside surfaces of the panels; the gas-liquid supplement docking mechanisms are installed on the outside surfaces of the panel; wherein n is a positive integer greater than or equal to 1, m is a positive integer greater than or equal to 1, and k is a positive integer greater then or equal to 1. Triangular prisms of the modules are connected through hinges and follow-up hinges driven through a configuration mechanism, the platform can be subjected to variable configuration and platform extension as required after orbit injection, the platform is ensured to be 100% maintainable on both outside and inside of the platform, and requirements of future satellite in-orbit maintenance and services can be fully met.